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After -cut back bolt connection is via dual aspect seismic type and cut anchors , fittings to connect the stone with a stone wall skeleton fixation methods , through engineering practice, summed up the formation of this construction method .

 

First, the characteristics

1 , the force between the plates separate , stand-alone installation , the independent replacement node approach flexible.

2, connecting reliable, small slate weaken , reducing damage to the joints local stone stone panel has high seismic capacity .

3 , can accurately control the stone with conical bottom of the hole spacing to ensure wall surface flatness .

4 , a high degree of factory construction , plates on the wall after adjustment work less .

 

Second, the scope

For building height is not greater than 30m, or non- seismic design seismic intensity of not more than 7 degrees civil stone curtain wall construction.

 

Third, the process principle

Section dedicated grinding through the double back in the stone away from the plate edge 100 ~ 180mm inverted cone at the grind , inverted cone with after -cut anchor combines flexible nylon body and the board passed to the load through the skeleton of the main structure .

 

Fourth, the process

 

 

Fifth, the operating points

 

1 , pre-construction preparation: the main structure of concrete strength should not be less than C25; rear anchors in accordance with the design and specifications for field resistance to pullout test , skeleton stone wall before installation of the " four" test .

2 , Surveying : Through the main structure of the reference axis and the standard point for accurate positioning .

3, the metal frame processing, installation

3.1 Under construction stakeout graph examination actinomycetes accurate or not, according to site size processing cutting .

3.2 installed at both ends of the column with the facade , the pull-through lines installed in order for the middle column.

3.3 The level of construction control lines will lead to the column, check with the horizontal ruler .

3.4 requires the installation of beams according to design drawings . If welding , the response has been completed and the adjacent lower face protection. Welding, butt should be used to reduce the welding deformation, and check the welds after passing the brush rust .

4 , stone processing , grinding holes

4.1 Checking the stone color, size deviation and damage, etc. , if there are significant color, lack of edge , off angle , etc. should be replaced , after passing the stone plate by drawing number.

4.2 stone and frame connectors connected via picture , the top and bottom of the panel for grinding holes , holes from the edge 100 mm to 180 mm ; horizontal distance of not more than 600 mm.

Connections should use anchors manufacturers of complementary products ; connector connected with the metal skeleton should be strictly in accordance with existing regulatory requirements against rust , anti -corrosion measures .